Toe-calk shears.



J. L. ZANE.

' TOE GALK SHEARS.

APPLICATION FILED APR. 11, 1912.

Patented Apr. 8, 1913.

Attorneys 'onrrmo sTaTas PATENT enrich.

JAMES L. ZANE, OF FARMINGTON, IOWA.

TOE-CALK SHEARS.

useful Toe-Calk Shears, of whichthe following is a specification.

The device forming the subject matter of this application is adapted tobe employed for cutting toe calks from horse shoes.

The invention aims to provide a movable cutting member and to provide arotatable presser foot adapted to press the shoe against the cuttingmember during the operation thereof.

A further object of the present invention is to provide novel actuatingmechanism for the movable jaw and to provide novel means for limitingthe lateral movement of the movable jaw during the cutting operation.

A further object of the present invention is to provide novel means foroperatively connecting the actuating and cutting elements of thestructure so that there will be no lost motion.

With the foregoing and other objects in view which will appear as thedescription proceeds, the invention resides in the combination andarrangement of parts and in the details of construction hereinafter described and claimed, it being understood that changes in the preciseembodiment of the invention herein disclosed can be made within thescope of what is claimed without departing from the spirit of theinvention.

In the accompanying drawingsFigure 1 shows the invention in perspective;Fig. 2 is a side elevation, parts being broken away in sections; andFig. 3 is a transverse section of a portion of the supporting structure,showing the fixed jaw mounted therein.

In carrying out, the invention there is provided a supporting structure,denoted generally by the numeral 1. The supporting structure 1 includesa standard 2 to the upper end of which is secured a bar 3 having a loop41 at one end extended in the general direction of the bar 3. At itsother end, the bar 3 carries a depending loop 5 terminated in anupstanding, curved finger 6, the extremity of which lies above the bodyportion of the bar 3. That side of the bar 3 which is adjacent thefinger 6 is recessed and shouldered as shown at 7 to receive the fixedjaw 8.

Specification of Letters Patent.

Application filed April 11, 1912.

Patented Apr. 8, 1913.

Serial No. 690,086.

The invention further includes a movable jaw 9, preferably taken in theform of a curved lever, fulcrumed at one end as indicated at 10, in theloop 4 of the bar 3. The movable jaw 9 is in slidable contact with thefinger 6, the finger 6 serving to direct the vertical movement of thejaw 9 with respect to the fixed jaw 8. Pivotally connected with the freeend of the jaw 9 as indicated at 11 is a link 12, the lower end of whichis pivotally connected at 14 with a lever denoted generally by thenumeral 15, the lever 15 being fulcrumed as at 16 in the depending loop5 of the bar 3. The lever 15 is curved in its intermediate portion asindicated at 17, for a purpose to be described hereinafter, the lever 15terminating in a hand grip 18. The bar 3 is formed with bearings 19 inwhich is j ournaled a shaft 20, provided with an arched presser foot 21mounted to rotate atright angles to the plane of movement of the movablejaw 9. One end of the shaft 20 terminates in a crank arm 21 pivotallyconnected with a link 22,the lower end of which is pivotally connectedwith a keeper 24, carried by one arm 25 of a pedal 26, the other arm 27of the pedal being adapted to receive thefoot of the operator, and theintermediate portion 28 of the pedal being journaled for rotation in abearing 29 secured to one edge of the member 2.

Resilient means is provided for depressing the presser foot 21 and forswinging the same away from the movable jaw 9. This means includesa'retractile spring 30 pivotally connected with the intermediateportions of the presser foo-t as indicated at 31, the lower end of thespring 30 being con nected with a link 32 pivotally connected with ahook 33 secured to a reinforcing member 34 attached to, or formedintegrally with the standard 2.

The practical operation of the device is as follows: The shoe from whichthe toe calk is to be clipped is placed vertically upon the bar 3, thetoe calk projecting beyond the fixed jaw 8. The foot of the operator isplaced upon the arm 27 of the pedal 26, causing a depression of the link22 and, through the instrumentality of the crank arm 21, causing arotation ofthe shaft 20, whereupon the presser foot 21 will be swung ina plane at right angles to the plane of movement of the movable jaw 9,the presser foot 21 engaging the shoe and holding the same against themovable jaw 9, so that the movable jaw, when depressed, may clip awaythe toe calk. During the vertical movement of the movable jaw 9, thesame is restrained against lateral movement by means of the finger 6,the finger 6 obviously preventing the movable jaw 9 from being thrustsidewise, due to the pressure of the presser foot 21. When the manuallyoperable end 18 of the lever 15 is swung downwardly, the link 12 willcause the movable jaw 9 to descend, sliding along the face of the finger6, the movable jaw 9 ultimately engaging the toe calk and shearing thesame away. So soon as the pedal pressure is removed from the arm 27 ofthe pedal 26, the spring 30 will act to swing the presser foot 21 awayfrom the shoe. Owing to the fact that the lever 15 is curved in itsintermediate portion as indicated at 17 it is possible to dispose thecrank arm 21 and the link 12 upon the same side of the machine, theconstruction of the lever being such that the lever may be operatedwithout interfering with the elements under consideration. Since thelever 15 is fulcrumed as indicated at 16 in the depending loop 5 of thebar 3, a lateral movement of the lever is limited. Likewise, since themovable jaw 9 is fulcrumed as indicated at 10 in the loop 4 of the bar8, a lateral movement of the fulcrumed end of the movable aw is limited,a

lateral movement of the free end of the movable jaw being limited by thefinger 6.

Having thus described the invention, what I claim-as new is:

1. In a machine for cutting toe calks, a supporting structure includinga fixed jaw; a movable jaw fulcrumed upon the support-- ing structure; apresser foot journaled for rotation upon the supporting structure formovement independently of the movable jaw and at right angles to theplane of movement of the movable jaw the foot being adapted to press theshoe against the movable jaw during the descent of the movable jaw tocut the calk, the presser foot including a crank arm; a link connectedwith the crank arm; a pedal upon the supporting structure, operativelyconnected with the link and spring means for retracting the presser footand for elevating the pedal.

2. In a machine for cutting toe calks, a supporting structure includinga bar provided at one end with a depending loop terminating in anupstanding finger; a fixed jaw carried by the bar; a movable jawtulcrumed upon the bar and held in operative relation with the fixed bythe finger; a lever fulcrumed in the loop; and a link connected with themovable jaw and with the lever.

3. In a machine for cutting toe calks, a supporting structure includinga bar provided at one end with a depending loop terminating in anupstanding finger; a fixedjaw carried by the bar; a movable aw fulcrumedupon the bar and held in operative relation to the fixed jaw by thefinger; a lever iulcrumed in the loop; a link connected with the movablejaw and with the lever; and a presser toot rotatably mounted upon thesupporting structure for movement at right angles to the plane ofmovement of the movable jaw and operable independently of the movablejaw.

1. In a machine for cutting toe calks, a supporting structure includinga bar provided with a depending loop terminating in an upstandingfinger; a fixed jaw upon the bar; a movable jaw fulcrumed upon the barand slidably engaged with the finger; a lever tulcrumed in the loop; alink connecting the lever with the movable jaw; a presser foot mountedupon the supporting structure for rotary movement transversely of theplane of movement of the movable jaw and inde' pendently of the movablejaw, the presser foot including a crank arm; a link connected with thecrank arm; and a pedal upon the supporting structure, operativelyconnected with the link.

5. In a machine for cutting toe calks, a supporting structure; a fixedjaw; a movable jaw fulcrumed upon the supporting structure; a leverfulcrumed upon the supporting structure; a link connecting the leverwith the movable jaw; a presser tootj ournaled for rotation upon thesupporting structure for movement at right angles of the plane ofmovement of the movable jaw, the presser foot including a crank armlocated in the vicinity of the link; and means connected with the crankarm for operating the presser foot; the lever being curved in itsintermediate portions to space the lever from the crank arm and from thelink.

6. In a machine for cutting toe calks, a supporting structure includinga fixed jaw; a movable aw tulcrumed upon the supporting structure formovement in a fixed plane; a fixed member slidably engaged with themovable jaw to prevent lateral movement of the movable jaw; anindependently operable presser foot journaled for rotation upon thesupporting structure for movement at right angles to the plane of themovable jaw; means for operating the presser foot to thrust the sameagainst the shoe and to thrust the shoe against the movable jaw; andspring means for swinging the presser foot from the shoe.

7. In a machine for cutting toe calks, a standard; a bar provided at itsends with loops, one of which loops extends along the top of thestandard, the other of which loops extends along the side of thestandard, the last specified loop terminating in an up standing finger;a movable jaw pivoted in the first specified loop and engaged with thefinger against movement in one direction; a In testimony that I claimthe foregoing lever fulcrumed in the last specified loop; as my own, Ihave hereto aflixed my signaa link connecting the intermediate portionture in the presence of two witnesses.

of the lever with the free end of the movable JAMES L. ZANE. jaw toslide the movable jaw along the Witnesses:

finger; and a fixed jaw upon the bar, inter- MARTIN HARNAGEL,

mediate the loops. B. F. KITCHAM.

Copies of this patent may be obtained for five cents each, by addressingthe Commissioner of Patents. Washington, D. G.

